Individual Calculations December 2012
 Ivanov, Borislav  Total change: 25.80  Rating chartPersonal card
 National Students Championship 2012 Sofia BUL 2012-11-07
 2156 2201 5.00 6 1.72 15 25.80 
  Tsekova, Viktoria 1875 BUL0.501-0.3715-5.55 
  Metev, Martin 2005 BUL0.501-0.2515-3.75 
  Ivanov, Stojan Lubomirov 2295 BUL1.0010.63159.45 
  Sirkova, Darena wf1954 BUL1.0010.19152.85 
  Kukov, Velislav m2394 BUL1.0010.751511.25 
  Enchev, Ivajlo m2411 BUL1.0010.771511.55 

Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change)


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